Although Electro (Jamie Foxx) plays a major role in The Amazing Spider-Man 2, for obvious reasons, we still don’t know nearly as much about him as we do Spidey. So we’re intrigued by a new snapshot from the editing bay, which just so happens to reveal a new bit of Electro concept art.

Meanwhile, we know even less about Rhino (Paul Giamatti), but maybe that’s okay. The actor confirms that he’s set for at least one more movie, so we’ll presumably have plenty of time to get acquainted. See the picture and check out Giamatti’s quotes after the jump.

Webb tweeted the photo of Garfield in the editing bay with Pietro Scalia.

Garfield and Scalia look like they’re having fun, but what really makes this photo noteworthy is the background. If you look above the computer, there’s a bit of concept art showing Electro’s full costume. Granted, it’s not a very high-quality image and there’s nothing about the outfit that looks particularly shocking, but it’s still nice to get a new perspective on the design.

Especially since we could see much more of it in the films to come. There’s been much talk of the franchise building up to the Sinister Six, so it’s reasonable to assume Foxx will be back for The Amazing Spider-Man 3 and/or 4. And now we know for sure that Giamatti will return, too.

Speaking to Collider, Giamatti confirmed that he was locked in for a multi-picture deal, adding, “Unless they really suddenly decided not to use me. They could, I suppose.”

For now, though, he is set to appear in The Amazing Spider-Man 3, although he’s not sure about The Amazing Spider-Man 4. “I think I’m only doing the next movie. I don’t know if I’m doing the next next movie,” he said.

That still isn’t a 100% confirmation that the Sinister Six storyline will happen. Indeed, Giamatti clarified that he hadn’t heard anything “hard and fast” about the Sinister Six, even as he acknowledged that it “seems like” the movies are headed that way. But based on everything we’ve heard so far — including Giamatti’s latest comments — it’s a pretty safe bet.

The Amazing Spider-Man 2 opens May 2, 2014, followed by The Amazing Spider-Man 3 on June 10, 2016 and The Amazing Spider-Man 4 on May 4, 2018.